Technology of robot of three-dimensional and fiber-optic Laser Cutting is analytic

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  • source:BAGANZ CNC Machining
Laser is a kind of light, like nature other illuminant, be by atom (element or ion) transition arises, and initiative radiate is caused. Although laser is smooth, but what it and common light differ apparently is, laser relies on initiative radiate inside original cutty time only, the process of after this is decided completely by laser radiate, because this laser has very sterling color, do not have emanative almost directional, extremely high glow intensity. Laser has tropism of tall coherence, high strenth sex, Gao Fang again at the same time, after laser arises through laser, be delivered by illuminator and go up through collecting lens illuminate to treatment article, make machine article (the surface) get powerful heat energy and temperature increases quickly, make should be nodded melt quickly or vaporization, the moving contrail that cooperates laser head achieves the goal of treatment thereby. The characteristic 　 of robot of three-dimensional and fiber-optic Laser Cutting 1, the main characteristic 　 of fiber-optic laser (report changes 1) fiber-optic laser solely efficiency is tall, changeover efficiency amounts to 25 ％ above, fiber-optic laser need not match small-power cold water machine, use wind cold, but substantially the bad news report when managing job, save moving cost, achieve highest manufacturing efficiency. (Electric energy needs merely when 2) laser moves, do not need to produce the additional gas of laser, move and uphold charge what have minimum. (3) fiber-optic laser uses semiconductor modular with redundant design, optical lens is not had inside syntonic antrum, do not need to start time, have avoid adjust, the advantage of maintenance-free, tall stability, reduced fittings cost and maintenance time, traditional laser cannot be likened to this. (The output wavelengh of 4) fiber-optic laser is 1. 06 bottles of M, it is CO: The 1 ／ of wavelengh 10, precision is tall, the quality of beam of light of output is good, power density is high, special the absorption that is helpful for metallic stuff, have outstanding cut, solder ability, the charge lowest that makes machine thereby. (5) is overall smooth road by fiber-optic transmit, do not need complex illuminator to wait guide optical system, smooth way is simple, the structure is stable, outside smooth road maintenance-free. (Protective lens is contained in 6) cut head, make the valuable easy waste time such as lens of illuminator, focusing tastes wastage few. (7) light is passed fiber-optic derive, make the design of mechanical system becomes very simple, very easy with robot or multidimensional workbench is compositive. (After 8) laser adds glazing gate can one implement much chance, pass fiber-optic and prismatic, cent becomes multichannel much stage to work at the same time, expand easily function, upgrade convenient, simple. (Volume of 9) fiber-optic laser is minor, weight is light, working place is portable, cover an area of an area small. 2, the cut that the characteristic with three-dimensional the biggest Laser Cutting is the stuff of three-dimensional Ban gold that tall flexible and three-dimensional Laser Cutting fits small lot especially. Main show is in sex of its Gao Rou two respects: (1) is strong to the adaptability of material, it is basically OK that Laser Cutting machine adopts numerical control program cut random plank. (2) machines method by programme controll, if machine object happening change, simply modifies a program can, this decorate a border in the spare parts, when cutting hole, reflect particularly apparent, because build edge model, punching model faint to the treatment of other and different spare parts, and the cost of the mould is high, at present so three-dimensional Laser Cutting has the tendency that replaces the model that decorate a border, punching model. Generally speaking, the clamping apparatus design of three-dimensional machining reachs his to use more complex, but to be being machined plank does not increase machining power when laser beam machining, this makes clamping apparatus is made become very simple. In addition, equipment of a laser if the hardware with different form a complete set and software, can realize a variety of functions. 3, robot + 　 of the actor that fiber-optic laser combines, defect (the description that 1) replaces both of 5 axes machine tool to be able to undertake dimensional contrail with industrial robot implements three-dimensional and stereo cut, the repetition of industrial robot locates precision compares 5 axes machine tool a bit low, it is ± about 100 bottles of M, but gold of Ban of this completely OK and contented car is enclothed with chassis the precision requirement of the industry. And the cost cost that used industrial robot to reduce a system greatly, reduced expense of system of bad news cable and system to move uphold charge, reduced a system cover an area of an area. (Laser of 2) consumed fine replaces CO: Laser is fiber-optic laser technology is the laser technology that in last few years high speed develops, compare traditional laser, have better cut quality, lower systematic cost, longer service life and lower maintenance are used, lower bad news report. The laser that the key is fiber-optic laser can be passed fiber-optic transmit, go to the lavatory to join with industrial robot, implementation is flexible treatment. (3) uses industrial robot + the combination of fiber-optic laser undertakes machining, the craft such as L of lonely of long Bian Chong is finished, cut is orderly need not hind line technology reconditioning, shortened greatly technological process, reduced the investment of labour cost and mould charge, also improved product class and product additional cost. Choose those who match a corporation to leave software of line process designing, generate cut contrail directly through digital-to-analogue, abandoned multifarious show artificially religion, the maintenance that suits small lot much batch more tastes trial-produce the market, newly to be not demarcate to make the cut demand that waits for a few individuation. And, invest Gao Rou sex, efficient Laser Cutting equipment, will replace costly punch equipment and clipping facility, can more agile change product, hold the market. (Technology of most advanced and fiber-optic laser and number control 4) the technology is perfect and shirt-sleeve, representing the most advanced Laser Cutting level; Professional Laser Cutting machine controls a system, computer operation, can assure cut quality, make cut job more convenient, the operation is more simple; Configure intelligent manipulator, can implement three-dimensional and stereo cut, hold accuse to go to the lavatory, intelligence changes rate tall, assure the high rate of equipment, high accuracy, high reliability; Configuration of Laser Cutting head imports Laser Cutting head, reaction delicacy is accurate, cooperate effectively with manipulator, prevent cut head and treatment plank collision, can assure cut focus position, make sure cut quality is stable; Laser Cutting head can stand 1. 0MPa gas pressure, high pressure enrages distance equipment, rose to wait to cut the cut capacity of material hard to stainless steel. (The drawback with 5) only system can process metallic work only, cannot process metalloid work. This is what use because of this system is fiber-optic laser, its wavelengh is L064 cape, it is the CO of 10640 bottles of M at wavelengh relatively: Laser, it is the cause that metalloid work place absorbs not easily. 5 axes machine tool + CO: Laser and industrial robot + the contrast of fiber-optic laser analyses technology of robot of three-dimensional and fiber-optic Laser Cutting the applied 　 of robot of analytic and three-dimensional fiber-optic Laser Cutting 1, three-dimensional Laser Cutting of application of industry of three-dimensional Laser Cutting applies extensively at Sheet Metal Fabrication, metal treatment, advertisement to make, kitchen utensils and appliances, car, lamps and lanterns, curium. Already replaced a tradition to machine means in industry of Sheet Metal Fabrication especially, get the favour of industry user. 2, the plate material such as aluminous zincograph of zine plate of steel of the material stainless steel that can process, carbon, alloy steel, silicon steel, spring steel, aluminous, aluminium alloy, plating, plating, pickling board, copper, silver-colored, gold, titanium and tubal material cut. 3, another challenge that machine of three-dimensional Laser Cutting machines high strenth steel to cut a margin is pair of high strenth steel. Machine of three-dimensional Laser Cutting is applied to shape Ban gold cut a margin, be as high as the armor plate of 1500MPa to intensity especially, because do not have other treatment,the method can be replaced. Because be when the data that processes these tall hardness, the die of conventional device or the service life of cutting tool can shorten greatly, and Laser Cutting need not consider these issues, still have setup time weak point, can change neatly the advantage such as product or sample production. 4, the cut 　 that machine of three-dimensional Laser Cutting applies at car side wall (1) side wall shapes by heat of high strenth steel and become, its hardness very tall and should bear very great stress. The B side wall that place of high strenth steel makes increased to be able to bear or endure hit force, enhanced the security of the car. Although the cost of high strenth steel is higher,this also is, can be car manufacturer or the reason that are willing to use. (2) is used at equipment of starting a hole of car bumper laser, car bumper is different model, the punch means that uses a convention is very complex, and the spare parts arises easily be out of shape and stress, use Laser Cutting means, do not need complex clamping apparatus system, without treatment stress, cut El to not have be out of shape, without burr, without collapse edge, suit to later period is machined and be installed more. Can see, the field is created in the car, use laser technology, make tall, quality realizes precision of car production treatment well, easily automation, flexible change and intelligence is changed; More important is the safe quality that can improve a car, produce cleanness and reduce loss and pollution, reduce cost and final privilege go up personally to average consumer, science and technology accomplishs the beauty of the life, laser accomplishs the beauty of the car. The development trend 　 of technology of three-dimensional laser beam machining 1, although high accuracy, high rate, Gao Rou sex gets " hot (smooth) machine " the limitation of means, the precision of Laser Cutting follows the photograph of means of other CNC Machining such as numerical control mill to have a few difference than returning, but this does not affect its to apply, its precision is OK rise through raising the means such as the craft parameter with equipment performance and proper choice to obtain. In career respect, although Laser Cutting speed is minutely,can amount to a few meters even ten meters, but in big batch production, criterion not as good as metallic punch mould. Manufacture efficiency to rise, must raise a machine tool to machine speed, in effective regular rate nevertheless motion falls, if speed is exorbitant, add in implementation, when decelerate and commutation movement way, acceleration certainly will is very old, produce very large force possibly, want to gain high speed already so, want to reduce force again, be about to reduce the quality of athletic section as far as possible. 2, the price that the reason with costly equipment of low cost laser is laser above all does not poor, the laser that at present home grinds oneself its optics mode is very inaccessible base model, insufficient three-dimensional cut; It is to have not master the core technology that makes three-dimensional laser equipment next (be like cut head) ; It is not much to the research of AnT_ software and development again. Try to reduce facility cost only, master its core technology, this technique talent is large-scale application is made at aviation of car, spaceflight wait for a domain. 3, intelligence changes three-dimensional Laser Cutting in, the pose that should consider laser smooth axis not just, wait for an element from anxious quantity, return meeting occurrence workpiece occasionally or collide problem, at present certain software can make machine tool implementation semi-automatic or full automatic interference avoids let (for instance the) of module of 5 axes Laser Cutting of Tebis. To cut contrail lose a person, the practice with more mature technology is to show religion, its defect is take time, arduous and precision is not tall. Three-dimensional spare parts often has specific figure before treatment and irregular, wait for element influence as a result of gravity actually, its appearance may follow to be designed formerly have certain discrepancy, so the laser beam machining of three-dimensional spare parts should realize CAD to receive CAM continuously this one pace still needs time. 4, tall compositive because equipment of only station laser is general,change the price is high, so functional diversification is a way that laser equipment develops all the time. It is relatively mature to be done not have on equipment of general now three-dimensional laser compositive cut triumphant, solder, methods of a variety of laser beam machining such as finishing. Although have some of facility already can cut also can solder or stiletto, but meeting emphasize particularly on to machine means one kind among them, change other function infirmly. Because all sorts of treatment kind are right the requirement of equipment is different, establishment of its form a complete set has very big different, will tell to the factory, basically be private plane special. "Tall compositive change " it is an opposite concept, on an equipment cannot compositive too much treatment means, the unit that place of each treatment means provides is compositive disturb easily each other to, and these device because its are special the gender is very strong, compositive hind the price is more high. 5, study the complexity as a result of Laser Cutting theoretically, had not compared complete three-dimensional cut model at present. Will tell to laser beam machining, building database of parameter of Laser Cutting craft and expert system is indispensable. Sum up the facility of three-dimensional Laser Cutting that at present domestic each district owns to be imported from foreign high price for the most part, also put in certain difference on academic research, the cut craft of the implementation that basically is centered in contrail of space of three-dimensional spare parts and three-dimensional spare parts two respects, to the laser in process of Laser Cutting of three-dimensional spare parts the interact between body of one material stretch, namely mechanism of three-dimensional Laser Cutting did not make thorough research. Because domestic laser is three-dimensional,cut technology still has very big difference with foreign advanced technique, main show is on the development of equipment, lack the high power laser of quality of tall beam of light, accordingly this technology still has a lot of places to be worth to continue to study deep and increase development strength. CNC Milling